Standard for trucks



March 3, 1942.

T. A. YOUNCE. SR 2,275,333

STANDARD FOR TRUCKS Filed Aug. 18, 1941 Patented Mar. 3, 1942 uNrrs srss EEHQE 1 Claim.

This invention relates to standards for trucks, and more particularly to standard locking and releasing mechanism for standards of logging trucks.

An object of this invention is to provide stand-.- ards to be associated with bolsters of such trucks, including means for holding the standards rigidly upright with relation to the bolsters; means being also provided for operating the standard retaining and releasing means whereby when retained the standard is held in an upright position against accidental displacement, and when released may be rotated or partially turned so that it assumes a vertical position with relation to the bolster and projects downwardly therefrom.

It is a further object of the invention to provide standards each of which is independently held in the two positions heretofore stated; and it is an object to provide strong and durable supports for the standards, and strong and durable mechanism by which they are moved to and held in operative positions.

With the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to the accompanying drawing forming part of this application, wherein like characters denote corresponding parts in the several views, and in which:

Figure 1 illustrates a sectional view of a bolster showing standards embodying the invention and mechanism for operation and retention;

Figure 2 illustrates a plan view thereof; and

Figure 3 illustrates a sectional view on the line 3-3 of Fig. 2.

In the drawing 5 denotes any suitable bolster for use on logging or other trucks and, as here shown, the bolster consists of a channel iron in which the standard 6 is mounted and with which the operating mechanism is associated. The standard may be of any appropriate length or height and the inventer does not wish to be restricted with respect to this detail. An integral shank 1 extends at right angles to the standard and is slidable in a barrel or sleeve 8 which is fastened to the floor or bottom 9 of the bolster.- As the structural features and mechanism to be described are associated with each end of the bolster, a description of the installation at one end will, it is to be understood, be appropriate to that of the other end.

As illustrated, the floor or bottom of the bolster has a recess or seat l0 and the barrel or sleeve has a practically semi-circular recess H in its end which is of such dimensions as to receive a portion of the standard which is seated therein when said standard is in an upright position.

bolt I 8.

The shank l of the standard, as stated, is slidable in the sleeve and it is drawn into the recess H of the sleeve and held therein by mechanism to be described. When the shank and standard are moved outwardly that portion of the standard within the recess ll clears the said sleeve and the standard may then be moved to the position in which it is shown on the right hand side of Fig. 1 so that logs or the load carried by the bolster may roll transversely of the truck and be discharged from the bolster.

As a means for drawing the standard into the recess of the sleeve, the inner end of the'shank of the sleeve is provided with a rod l2 threaded in the end of the shank and a lock nut 13 threaded on the rod serves to aid in looking the rod in position. The end of the rod opposite the shank extends through a part M of a yoke l5, and a spring I6 is applied to the rod within the yoke and is held thereon by a nut ll threaded on the inner end of the rod. The cheeks of the yoke have a bolt l8 extending through them and a pitman or connecting rod I9 is interposed between the cheeks and it is oscillatable on the The end of the pitman remote from the yoke has a wrist pin 2!] extending through it and the said wrist pin is eccentrically mounted ona disk 2| carried by a rod 22. The outer end of the rod remote from the disk has a head 23 that may be engaged by a wrench or the like to partially rotate the rod and the relation of parts is such that when the standard is in the seat of the sleeve the wrist pin 20 is passed downwardly below the axis of the rod 22 and the standard is thereby held against accidental displacement and is so engaged with the sleeve as to hold the load against accidental displacement. When it is desired, however, to release the standard so that it may move to a position in which it is shown at the right hand side of Fig. 1, the rod 22 is turned so that the wrist pin 20 moves upwardly past the axis of the rod 22 and thereby the yoke and the shank of the standard is moved outwardly to free it from the recess in the sleeve. 1

I claim:

In a logging truck, a bolster, a sleeve anchored to the bolster and having a recessed outer end at the end of the bolster, a standard having a shankslidable and rotatable in the sleeve, a rod connected to the inner end of the shank, a yoke to which the opposite end of the rod is connected, a pitman connected to the yoke, a rotatab-ly mounted disk having a wrist pin eccentrically carried thereby, the said pitman being connected to the said wrist pin whereby when the wrist pin is moved below the axis of the disk the bolster is held in the recess of the sleeve.

THOMAS ABRAHAM YOUNCE', SR. 

